EP 2631473 A1 20130828 - WIND TURBINE BLADE, WIND POWER GENERATING DEVICE COMPRISING SAME, AND WIND TURBINE BLADE DESIGN METHOD
Title (en)
WIND TURBINE BLADE, WIND POWER GENERATING DEVICE COMPRISING SAME, AND WIND TURBINE BLADE DESIGN METHOD
Title (de)
WINDTURBINENSCHAUFEL, WINDKRAFTERZEUGUNGSVORRICHTUNG DAMIT UND VERFAHREN ZUR KONZEPTION EINER WINDTURBINENSCHAUFEL
Title (fr)
PALE DE TURBINE ÉOLIENNE, DISPOSITIF DE GÉNÉRATION D'ÉNERGIE ÉOLIENNE LA COMPRENANT, ET PROCÉDÉ DE CONCEPTION DE PALE DE TURBINE ÉOLIENNE
Publication
Application
Priority
- JP 2010238041 A 20101022
- JP 2011073566 W 20111013
Abstract (en)
A blade back shape from a maximum blade thickness position (3) toward a rear edge (4) is defined so that when a distance from a front edge along a blade chord line is represented by X and a distance from the blade chord line to a blade back side is represented by Y, the blade back shape includes a first region (11) that extends from the maximum blade thickness position (3) toward the rear edge (4) on the blade back side with dY/dX as a primary derivative amount of Y to X decreasing by a first amount of change, a second region (12) that is located on a side of the rear edge (4) of the first region (11) and extends toward the rear edge (4) with dY/dX having a second amount of change smaller than the first amount of change, and a third region (13) that is located on the side of the rear edge (4) of the second region (12) and is connected to the rear edge (4) with dY/dX decreasing by a third amount of change larger than the second amount of change.
IPC 8 full level
F03D 1/06 (2006.01)
CPC (source: EP KR US)
F01D 5/14 (2013.01 - KR US); F03D 1/0641 (2013.01 - EP KR US); F05B 2240/301 (2013.01 - EP KR US); Y02E 10/72 (2013.01 - EP KR US); Y10S 416/02 (2013.01 - EP US); Y10T 29/49336 (2015.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2631473 A1 20130828; EP 2631473 A4 20140702; EP 2631473 B1 20180207; CN 103168172 A 20130619; CN 103168172 B 20150708; JP 2012092660 A 20120517; JP 5479300 B2 20140423; KR 20130069812 A 20130626; US 2013272890 A1 20131017; US 8911214 B2 20141216; WO 2012053424 A1 20120426
DOCDB simple family (application)
EP 11834264 A 20111013; CN 201180050612 A 20111013; JP 2010238041 A 20101022; JP 2011073566 W 20111013; KR 20137009990 A 20111013; US 201113879721 A 20111013